IT 202 - Lab 9

IT 202 - Web and Multimedia Technology

Lab 9 - Fall 2007

Due: Thursday 11/1/2007 by 11:59 pm.

For lab this week, we want to set up our web server to handle PHP and write a simple PHP-enabled web page.

The following is the steps to install .php support for apache2 in ubuntu. Recall that apache2 is the apache package designed by ubuntu. The commands given below are expected to be run from a command line prompt in a terminal window.

Setup the sources.list file for apt
```
	sudo pico /etc/apt/sources.list
```
Add the following line to the source.list file
```
	deb http://192.168.1.1 feisty main
```
This will direct you machine to the package/installation files that are set up on one machine in the lab.
Then get the most recent package list from the server
```
	sudo apt-get update
```
Install the PHP package from the server
```
	sudo apt-get install php5
```
To test is you have PHP up and running, create a simple PHP web page and see if it will display properly.
In your DocumentRoot directory, create a file test.php. You can use any text editor you like instead of using pico in the command.
```
        sudo pico test.php
```
This file should contain something like:
```
        <html>
        <body>
        <?php
           phpinfo();
        ?>
        </html>
        </body>
```
The phpinfo() function displays a large amount of data about the web server.

A PHP Generated Table

After you have gotten PHP working, write a web page that will give the Celius to Fahrenheit tempurature values for the Celius values from 0 to 100 in steps of 10 (i.e. 0, 10, 20, 30, ... 100). The values should be given in a table with one side showing the degrees Celius and the other side showing the degrees Fahrenheit.

PHP Variables
Variable in PHP begin with a dollar sign, $. Detailed information on this can be found at the W3Schools Web page at: http://www.w3schools.com/php/php_variables.asp. Assignments are done as follows:
```
       $var_name = value ;
```
PHP Loops
Loops in PHP can be done using the C/C++/Java style of while loops, do-while loop and for loops. Detailed information on this can be found at the W3Schools Web Page at: http://www.w3schools.com/php/php_looping.asp A for loop that will output the values from 1 to 10 would be
```
       <?php

         for ($i = 1 ; $i <= 10 ; $i++)
           echo "$i"

       ?>
```
Celius to Fahrenheit Conversion
The formula to convert from degrees Celius to degrees Fahrenheit is:
```
       Tf = (9.0/5.0)*Tc + 32 

       Where:
         Tc = temperature in degrees Celsius, 
         Tf = temperature in degrees Fahrenheit 
```
Detailed information on operator in PHP can be found at the W3Schools Web Page at: http://www.w3schools.com/php/php_operators.asp

This lab assignment is to done in the lab in SEL 2264.